./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:17,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:17,486 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:17,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:17,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:17,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:17,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:17,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:17,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:17,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:17,563 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:17,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:17,565 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:17,567 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:17,568 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:17,568 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:17,569 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:17,569 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:17,570 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:17,570 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:17,571 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:17,572 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:17,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:17,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:17,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:17,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:17,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:17,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:17,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:17,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:17,579 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:17,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:17,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:17,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:17,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:17,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:17,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:17,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:17,582 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:17,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:17,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:17,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:17,583 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:17,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:17,585 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a [2023-11-23 21:16:17,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:17,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:17,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:17,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:17,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:17,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2023-11-23 21:16:21,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:21,965 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:21,966 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2023-11-23 21:16:22,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/data/34aea7e49/1a416ecd6886435a9aa933aff96053f3/FLAG77b998721 [2023-11-23 21:16:22,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/data/34aea7e49/1a416ecd6886435a9aa933aff96053f3 [2023-11-23 21:16:22,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:22,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:22,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:22,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:22,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:22,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:22" (1/1) ... [2023-11-23 21:16:22,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c0c792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:22, skipping insertion in model container [2023-11-23 21:16:22,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:22" (1/1) ... [2023-11-23 21:16:22,208 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:22,761 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2023-11-23 21:16:22,762 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3826-3827] [2023-11-23 21:16:23,202 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i[120230,120243] [2023-11-23 21:16:24,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:24,548 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:24,692 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2023-11-23 21:16:24,693 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3826-3827] [2023-11-23 21:16:24,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3910] [2023-11-23 21:16:24,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3917] [2023-11-23 21:16:24,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3931-3932] [2023-11-23 21:16:24,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3952] [2023-11-23 21:16:24,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3955] [2023-11-23 21:16:24,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3958] [2023-11-23 21:16:24,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3961] [2023-11-23 21:16:24,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [3996] [2023-11-23 21:16:24,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [4003] [2023-11-23 21:16:24,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4078] [2023-11-23 21:16:24,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4086] [2023-11-23 21:16:24,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4112] [2023-11-23 21:16:24,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [4120] [2023-11-23 21:16:24,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [4146] [2023-11-23 21:16:24,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [4153] [2023-11-23 21:16:24,731 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4160] [2023-11-23 21:16:24,735 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i[120230,120243] [2023-11-23 21:16:25,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:25,386 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:25,396 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:25,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25 WrapperNode [2023-11-23 21:16:25,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:25,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:25,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:25,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:25,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:25,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:25,967 INFO L138 Inliner]: procedures = 228, calls = 2613, calls flagged for inlining = 109, calls inlined = 107, statements flattened = 6896 [2023-11-23 21:16:25,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:25,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:25,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:25,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:25,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:25,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:26,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:26,621 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:26,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:26,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (1/1) ... [2023-11-23 21:16:26,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:26,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:26,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:26,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98ecf6f-c8fb-410e-bf2b-5b27267bd41e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:16:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:16:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:16:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:16:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:16:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:16:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:16:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:16:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:16:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:16:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:16:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:16:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushRxFIFO [2023-11-23 21:16:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushRxFIFO [2023-11-23 21:16:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:16:26,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:16:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2023-11-23 21:16:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2023-11-23 21:16:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-23 21:16:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-23 21:16:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure rocket_paranoia_check [2023-11-23 21:16:26,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rocket_paranoia_check [2023-11-23 21:16:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2023-11-23 21:16:26,867 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2023-11-23 21:16:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:16:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:16:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:16:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:16:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure rp_wait_until_sent [2023-11-23 21:16:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_wait_until_sent [2023-11-23 21:16:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushTxFIFO [2023-11-23 21:16:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushTxFIFO [2023-11-23 21:16:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:16:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:16:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2023-11-23 21:16:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2023-11-23 21:16:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:16:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:16:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure sInW [2023-11-23 21:16:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sInW [2023-11-23 21:16:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure GetLineNumber [2023-11-23 21:16:26,923 INFO L138 BoogieDeclarations]: Found implementation of procedure GetLineNumber [2023-11-23 21:16:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-11-23 21:16:26,924 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-11-23 21:16:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure rp_send_xchar [2023-11-23 21:16:26,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_send_xchar [2023-11-23 21:16:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure out32 [2023-11-23 21:16:26,924 INFO L138 BoogieDeclarations]: Found implementation of procedure out32 [2023-11-23 21:16:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure sInB [2023-11-23 21:16:26,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sInB [2023-11-23 21:16:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2023-11-23 21:16:26,925 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2023-11-23 21:16:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure rp_start [2023-11-23 21:16:26,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_start [2023-11-23 21:16:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopID [2023-11-23 21:16:26,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopID [2023-11-23 21:16:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:16:26,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:16:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:16:26,926 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:16:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2023-11-23 21:16:26,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2023-11-23 21:16:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure rp_hangup [2023-11-23 21:16:26,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_hangup [2023-11-23 21:16:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:16:26,927 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:16:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:16:26,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:16:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:16:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:16:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure sSetInterfaceMode [2023-11-23 21:16:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sSetInterfaceMode [2023-11-23 21:16:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-23 21:16:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-23 21:16:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure rp_write_room [2023-11-23 21:16:26,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_write_room [2023-11-23 21:16:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmset [2023-11-23 21:16:26,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmset [2023-11-23 21:16:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:16:26,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:16:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure init_r_port [2023-11-23 21:16:26,929 INFO L138 BoogieDeclarations]: Found implementation of procedure init_r_port [2023-11-23 21:16:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure rp_ioctl [2023-11-23 21:16:26,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_ioctl [2023-11-23 21:16:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure sModemReset [2023-11-23 21:16:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure sModemReset [2023-11-23 21:16:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2023-11-23 21:16:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2023-11-23 21:16:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:16:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:16:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:16:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 21:16:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 21:16:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure rp_break [2023-11-23 21:16:26,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_break [2023-11-23 21:16:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:16:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-23 21:16:26,931 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-23 21:16:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure rp_put_char [2023-11-23 21:16:26,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_put_char [2023-11-23 21:16:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2023-11-23 21:16:26,932 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2023-11-23 21:16:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure rp_unthrottle [2023-11-23 21:16:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_unthrottle [2023-11-23 21:16:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:16:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:16:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:16:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:16:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 21:16:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 21:16:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:16:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:16:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:16:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:16:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2023-11-23 21:16:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2023-11-23 21:16:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:16:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:16:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:16:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:16:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure sPCIModemReset [2023-11-23 21:16:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sPCIModemReset [2023-11-23 21:16:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-11-23 21:16:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-11-23 21:16:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure rp_flush_buffer [2023-11-23 21:16:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_flush_buffer [2023-11-23 21:16:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure rp_chars_in_buffer [2023-11-23 21:16:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_chars_in_buffer [2023-11-23 21:16:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:16:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure configure_r_port [2023-11-23 21:16:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_r_port [2023-11-23 21:16:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-23 21:16:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-23 21:16:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-23 21:16:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-23 21:16:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:16:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:16:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure sOutW [2023-11-23 21:16:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutW [2023-11-23 21:16:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:16:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:16:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure sDisInterrupts [2023-11-23 21:16:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sDisInterrupts [2023-11-23 21:16:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure rp_set_termios [2023-11-23 21:16:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_set_termios [2023-11-23 21:16:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure sOutB [2023-11-23 21:16:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutB [2023-11-23 21:16:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure rp_throttle [2023-11-23 21:16:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_throttle [2023-11-23 21:16:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmget [2023-11-23 21:16:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmget [2023-11-23 21:16:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2023-11-23 21:16:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2023-11-23 21:16:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopNumChan [2023-11-23 21:16:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopNumChan [2023-11-23 21:16:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:16:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:16:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-23 21:16:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-23 21:16:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-23 21:16:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-23 21:16:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:16:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:16:27,814 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:27,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:29,055 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:16:43,617 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:49,913 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:49,913 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:49,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:49 BoogieIcfgContainer [2023-11-23 21:16:49,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:49,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:49,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:49,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:49,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:22" (1/3) ... [2023-11-23 21:16:49,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbb30fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:49, skipping insertion in model container [2023-11-23 21:16:49,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:25" (2/3) ... [2023-11-23 21:16:49,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbb30fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:49, skipping insertion in model container [2023-11-23 21:16:49,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:49" (3/3) ... [2023-11-23 21:16:49,929 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2023-11-23 21:16:49,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:49,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:50,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:50,066 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30f2a034, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:50,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 1599 states, 1011 states have (on average 1.3669634025717112) internal successors, (1382), 1045 states have internal predecessors, (1382), 507 states have call successors, (507), 80 states have call predecessors, (507), 79 states have return successors, (502), 495 states have call predecessors, (502), 502 states have call successors, (502) [2023-11-23 21:16:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:16:50,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:50,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:50,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:50,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:50,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1048639668, now seen corresponding path program 1 times [2023-11-23 21:16:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090934529] [2023-11-23 21:16:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:50,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 21:16:55,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090934529] [2023-11-23 21:16:55,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090934529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:55,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:55,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614856159] [2023-11-23 21:16:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:55,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:55,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:55,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:55,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:55,862 INFO L87 Difference]: Start difference. First operand has 1599 states, 1011 states have (on average 1.3669634025717112) internal successors, (1382), 1045 states have internal predecessors, (1382), 507 states have call successors, (507), 80 states have call predecessors, (507), 79 states have return successors, (502), 495 states have call predecessors, (502), 502 states have call successors, (502) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 21:16:58,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:00,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:05,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:07,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []